Internal energy and pressure of a gas per unit vloume are related as :

Options

A. `P=(2)/(3) E`
B. `P=(3)/(2) E`
C. `P=(1)/(2) E`
D. P=2E

Answer

A

Explanation

PV =`(1)/(3) "mnu"^(2) =(1)/(3)Mu^(2)`
`=(2)/(3).(1)/(2)Mu^(2)=(2)/(3)E`
or P` =(2)/(3)E` per unit vol.